Wire-line clamp



Sept. 17, 1 929 CROTTQ 1,728,173

WIRE LINE CLAMP Filed 001?. 13, 1928 3 Sheets-Sheet 2 zz IIIIIIW lam.155 1 1 up /6 an) /5 Q) INVENTOR 1 .C7Eor7-o BY v.

ATTORNEY I Sept. 17, 1929. E, (:RQTTO 1,728,173

WIRE LINE CLAMP Filed 001;. 13, 1928 5 Sheets-Sheet 3 I INVENTOR i 2157472070 BY If, I ATTORNEY Patented Sept. 17, 1929 UNITED STATES PATENTOFFICE FRANK E. CROTTO, OF TULSA, OKLAHOMA, ASSIGNOR TO WESTERN SUPPLYCOM- PANY, OF TULSA, OKLAHOMA, A CORPORATION OF OKLAHOMA WIRE-LINE CLAMPApplication filed October 13, 1928. Serial No. 312,286.

This invention relates to new and useful As is shown in Fig. 1 two pairsof ears 13 improvements in wire line clamps. are provided and a lineryoke arm 16 has its One object of the invention is to provide inner endshinged between the ears on a pin a clamp in which the wire line maybebridled 17. The yoke arm has an integral vertical over one of the linersinstead of over thejoint liner boss 18 extending above and below betweenthe liners; whereby fouling the line said arm, and also being concaved.The boss I and frequently injuring the same is avoided. 12 ha a li 19 ft dth ei b screws Another object of the invention is to pro- 19, whilethe boss 18 has a liner 2O fastened vide a wire line clamp having anelongated therein by screws 20.

10 l ver f r swinging th arms t g r and The liners are an important partof the clamping the line thus securing a maximum inv ntion and are du liate Each is leverage upon a minimum travel of the lever. formed by acylindrical bar provided with A further object of the inven n Is to Pdiametrical opposite longitudinal concaved Vide a curved adjusting leverand an adjllStgrooves 21, When one groove becomes worn hlg Screw hearingagainst one end of the the liner may be reversed and the other groovever, whereby the end thrust of the screw is d.

contributed to the curved end of said lever U i i th arm 16 t w d thearm and the latter adlusted by a slight move 11, the liner 20 willreceive the cable in its contiguous to and around the y of groove 21 andseat said'cable in its groove 21 2 clamp, thus resulting in a moreconvenient f th li 19 O i t th Convex n 7 locating of the ttdlhstihgScrew and a better faces of the liners andthe concaved grooves balancingf th O P- 21 only thin edges of metal will engage when Still anotherobject of the invention is to th li swung together h b d Provide P ofreversible hhel's formed ing ofi these vertical edges suflicient clear-25 l bill Stock and easily grooved; also ance is provided to cause theliners to firmly readily interchanged, together With means grip thecable or line and not interfere with for making adjustments tocompensate the h th Wear of the liner grooves- A swinging arm 22 has itsinner end hinged A construction designed to Carry h the on the pin 17between the ears 13. A latch 30 Vehtioh will he hereinafter dtiscrlbethlever 23 is hinged on a pin 24 in the forked gather With other featuresof the lhYehtlohouter end of the arm 22. f The lever has a di- Theinvention will be more readily underi; handle 25, whereby it may be nStood from a reading of the fOHOWlhg P ally swung. The swinging of thelever is lim- Catioh and y reference the ttccomptthylhg ited by a fork26 disposed about a boss 27.

35 drawings, in which an example of the lhveh A gate lever 28 has a pairofspaced ears at tion is Sl10Wn,aI1 h r n one end hinged on a pin 29 1na recess 30 Fig. 1 is a side elevation of a wirellne clamp f d i th arm11 Th carnes a constructed in accordance with the lnventlon; keeper 1iti d b t th ears f 2 is it front elevation of the same; ceiving thehook on the latch lever 23. The

40 Fig. 3 is a plan Vi w O the Same, and lever 28 extends from therecess 30 and has Fig. 4 is a sectional View Of 11 f h h e a curved bill32 contiguous to the body 10.

In the drawings the numeral 10 deslg A nut 33 is removably fastened tothebody nates a yoke shaped body including an outb Screws 34, SO as t xtd i imlty to y directed arm At Center f the the end of the bill 33 ofthe gate lever. This 45 body is formed a concaved vertlcal liner boss tmay b renewed h necessary, A t 12, the inner Si Of he m d g from ,oroperating screw 35 is threaded through the one side of said boss andspaced ears 13 ext d h und d nd bearing on the end tending from theopposite side of the boss. of the bill. The screw hasalargehandle bavHooks 14 are provided on each side of the 36 ,whe'reby it'may be easilyrotated.

50 body for receiving the temper-screw links 15. It will be seen that byrotating the screw through the agency of the lever 23. The latch leveris held to the keeper by a coiled spring 37 extending from the lever toa web 38 on the end of the yoke arm 16. p p

A take-up screw 39 threaded through the swinging arm has a rounded endbearing on the web 38; thus whenthe -arm -22is-sw'ung toward the arm 11,the arm '16 is swung therelever carried by the swinging arm, a gatewith. When the lever 23 is disengaged'fr'om the keeper 31, the spring 37will tend to swing said lever toward the arm 16, but'the fork'26 willengagethe boss 27, thus limiting the swing ofsaid leverand alsoestablishing a connection betweenfthe arms 16 and 22, whereby they willbe swung in unison.

W'hen the grooves 21in the liners 19 and 20 wear,"com-pensation is madeby adjusting the screw 39 inwardly, whereby the arm 16 j is'moved closerto the boss 12. It is pointed out that a very limited iadjustmentyot thescrew'35 will swing the lever 28 a sufficient distance to draw the arms11 and -22together and clamp the cable, owing to the amplified leverageand the location of the parts.

The operation is as follows:

"The operating, screw 35 is rotated in a counter-clockwise direction,whereby the lever 28 is released suflioientlyto allow the latch lever 23to be disengaged from the keeper 3l. The handle 25 is used tordisengagethe lever and also toswing the arm 22 outwardly from the arm 11, thusopening up thethroat of the clamp. The arm 22 swings the arm "16 andlinerQO away from the liner 19.

The clamp thus being opened, the cable or wire line may now be engagedby swinging the body so that the line is received in the throat andsealed in the groove 21 of'the liner 19. VVhen the parts are in positionthe operatorgrasps the handle 25 and swings the arms 22 and 1.6 andengages the lever 23 with the keeper 31. This brings the liner 20 intoengagement with the cable. H I I The operator nextrotates the screw in aclockwise direction whereby the 'lever 28 is swung and the lever-23 istensioned. This causes the liners to firmly grip the line. The line isoliset from the pin 17 so that the pres sure on both sides of said lineis equal and pinching is eliminated. Minute adjustments ,of the'screw's35and 39 will have marked effect upon the parts controlled thereby and alarge amount otwear may be compensated.

In thevarious figures of the drawlngsl haveindicated indotted lines Athe position of the wire. line when engaged by the bridle hookB, As isshown in Fig. 3 the line bridles over the liner 20 instead otover thejoint between the liners; This is a particular advantage" as it preventsfouling Zor' inj uring the line,

oneside 0f the body, a swinging arm hinge swinging arm hinged to thebody, a line engaging membenactuated by the swinging arm" andco-actingwith the'line engaging means of the body to clamp a line, alatch lever mounted on-therigid arm and engaged by the latch lever, andan operating screw mounted'on the body and engaging the gate lever toswing the same. 7

2. In a wire line clamp, a body having a w1re l1ne liner, a rlgld armextending from to-the body, aliner support carrying a liner and actuatedby the swinging arminto clampingrelation to the liner of the body, alatch lever carried by the swinging arm, a gate lever having one endpivoted to the outer end of the rigid arm and engaged by the latchlever, andan operating screw mounted on the body and engaging theswinging end of gate lever to swing the same;

3. Ina wire line clamp, a body having a wire-line liner, a rigid armextending from one side of'the body, a. swinging arm hinged to the body,a liner support carrying aliner and actuated by the swinging arm intoclamping relation to the liner ofthe body, a latch lever carried by theswinging arm, agate --lever having one end pivotedto the outerend I ofthe rigid arm and engaged by the latch 'lever,-an operating screwmounted on the body'and engagingthe swinging end of gate lever to swingthe same,and means for adjustingthe liner support with relation to theswinging arm to compensatethe wear of the liners.

p 4. In a wire line clamp,-a body having a wire line liner, a rigid armextending from one side ofthe body, a swinging arm hinged to the otherside of the body, a gate lever having one end hinged to the outer end ofthe rigid arm, means connecting the'hinged end of the gate lever withtheswingingarm, the leverlying contiguous to the body and having itsfree end extending transversely across the body, and an operating screw-mounted on the opposite side of the body fromthe rigid armand engagingthe fre'eend of the lever for swinging the same.

.5. In a wire line clamp, a body, a reversible,

liner mounted in the body, a rigid arm extendingfrom the body, a linerarmcarried by the body, a reversible liner carried by the liner arm, aswinging arm hinged on the body, a take-up screw carried by'the swingingarm and engaging the liner arm, and means for bringing the rigid andswing arms together to bring the liners into clamping engagement with awire line.

6. In a wire line clamp, a body, a reversible liner mounted in the body,a rigid arm extending from the body, a liner arm carried by the body, areversible liner carried by the liner arm, a swinging arm hinged on thebody, a take-up screw carried by the swinging arm and engaging the linerarm, a latch lever pivoted on the outer end of the swinging arm, acoiled spring connecting the latch lever with the liner arm, and anoperating lever engaging the latch lever.

7 In a wire line clamp, a body having a wire line seat, a rigid armextending from the body, a swinging arm hinged to the body adjacent theswinging arm and carrying a line seat, a latch lever pivoted in theouter end of the swinging arm, a handle extending from the latch lever,a stop on the latch lever engaging the swinging arm to limit the swin ofsaid lever, a coiled spring connecting the latch lever with the yokearm, and an operating lever engaged by the latch lever.

8. In a wire line clamp, a yoke shaped body having a Wire line seat, arigid arm extending from the body, a gate pivoted at one end to theouter end of the rigid arm and having a bill curved around body, anoperating screw mounted on the body and engaging the end of the bill, aswinging arm mounted on the body for clamping a line in the seat of thebody, and a latch lever carried by the swinging arm and engaging thegate lever.

9. In a wire line clamp, a body havin a vertical liner boss extendingabove and %8- low, a liner removably mounted in the body boss, a rigidarm extending from the body at one side of the boss, a swinging armhinged to the body at the opposite side of the boss thereof, a yoke armhinged to the body and having a vertical liner boss, a liner removablymounted in the boss of the yoke arm and co-acting with the body liner toclamp a line, a take-up screw mounted on the swinging arm and engagingthe yoke arm for a justing the latter to compensate the wear of theslips, and means for fastening the swinging arm in place.

10. In a wire line clamp, a body having arms and wire line clampingmeans, a lever mounted on the body for swinging the arms together tooperate the clamping means, a nut removably fastened on the body, and anoperating screw mounted in the nut and engaging the free end of thelever for swinging the lever.

In testimony whereof I aflix my signature.

FRANK E. CROTTO.

